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Broadcast in May 2011 On March 11th, a massive earthquake struck eastern Japan. The magnitude 9.0 earthquake, one of the largest ever recorded, triggered a gigantic tsunami that devastated the coastal areas. Why did the Miyagi Prefecture offshore earthquake, which was predicted to occur with a 99% probability within the next 30 years, occur on a scale far beyond what was expected? Why was the memory of the repeated tsunamis that have struck the Sanriku coast not utilized for disaster prevention? A tsunami researcher looks back and says that every conceivable tsunami disaster has occurred. Meanwhile, a researcher who only recently discovered that a gigantic tsunami like this one had occurred in the Heian period was surprised that a tsunami that was feared to occur again had occurred this year, and expressed regret that he had not sounded the alarm. The program listened to the researchers' words while also covering the disaster-stricken areas. Main interviewees: Owada Yuichi (Rikuzentakata City Fire Department), Dr. Imamura Fumihiko (Tohoku University), Dr. Toji Yoshinobu (Earthquake Research Institute, University of Tokyo), Dr. Komura Takashi (Earthquake Research Institute, University of Tokyo), Dr. Shishikura Masanobu (National Institute of Advanced Industrial Science and Technology), Dr. Hayashi Yoshinari (Kansai University) ******************************************************************************** <"Galileo X" program website> http://web-wac.co.jp/program/galileo_x/ #GreatEastJapanEarthquake#DisasterPrevention#GiantTsunami